203.231.13.0/24

AS18309 · Korea VAn Service Co.LTD

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS18309
Parent Range	203.231.0.0/16
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        203.231.0.0 - 203.231.255.255
netname:        SEJONG
descr:          SEJONG NETWORKS
country:        KR
admin-c:        IM686-AP
tech-c:         IM686-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2024-09-10T08:50:05Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         irt@nic.or.kr
abuse-mailbox:  irt@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        irt@nic.or.kr was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
country:        KR
phone:          +82-2-1688-2200
e-mail:         ip@sejongnetworks.com
nic-hdl:        IM686-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2024-09-10T08:42:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.231.13.0/24

Range	ASN	Company	Num of IPs
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17837	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17881	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18300	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18305	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18309	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.231.0.0/16	AS38676	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.231.0.0/16	AS131866	SEJONG NETWORKS	65,536

Nearby Ranges

BGP prefixes that overlap with 203.231.0.0/16

Range	ASN	Company	Num of IPs
203.231.0.0/16	AS131866	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17837	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17881	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18300	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18305	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18309	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.231.0.0/16	AS38676	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
52.32.57.40	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
23.48.98.232	AS20940 Akamai International B.V.	`0.72ms` from Chicago, US
99.182.254.56	AS7018 AT&T Enterprises, LLC	`8.29ms` from Dallas, US
120.87.154.40	AS17816 China Unicom IP network China169 Guangdong province	`4.58ms` from Guangzhou, CN
42.118.41.200	AS18403 FPT Telecom Company	`5.78ms` from Ho Chi Minh City, VN
27.6.191.72	AS17488 Hathway IP Over Cable Internet	`1.39ms` from Hyderabad, IN
68.107.93.168	AS22773 Cox Communications Inc.	`7.09ms` from Los Angeles, US
3.93.197.88	AS14618 Amazon.com, Inc.	`0.43ms` from Reston, US
123.253.229.216	AS136168 Campana MYTHIC Co. Ltd.	`0.67ms` from Singapore, SG
153.151.222.200	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.83ms` from Tokyo, JP
77.167.104.248	AS1136 KPN B.V.	`5.31ms` from Amsterdam, NL
195.251.118.152	AS5408 National Infrastructures for Research and Technology S.A.	`1.13ms` from Athens, GR
91.20.37.168	AS3320 Deutsche Telekom AG	`5.82ms` from Frankfurt am Main, DE
14.169.196.232	AS45899 VNPT Corp	`1.50ms` from Ho Chi Minh City, VN
104.18.66.8	AS13335 Cloudflare, Inc.	`0.17ms` from Johannesburg, ZA
68.229.189.200	AS22773 Cox Communications Inc.	`4.82ms` from Kansas City, US
186.48.191.216	AS6057 Administracion Nacional de Telecomunicaciones	`1.70ms` from Montevideo, UY
91.155.204.56	AS719 Elisa Oyj	`4.82ms` from Oulu, FI
151.106.158.136	AS14340 Salesforce.com, Inc.	`0.91ms` from Paris, FR
34.194.30.8	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
115.97.0.184	AS17488 Hathway IP Over Cable Internet	`1.62ms` from Saint Thomas Mount, IN
190.106.74.216	AS28022 CRISP S.A.	`0.81ms` from San Jose, CR
75.97.151.168	AS3737 PenTeleData Inc.	`13.10ms` from Secaucus, US
77.127.71.136	AS12400 Partner Communications Ltd.	`2.38ms` from Tel Aviv, IL
153.212.75.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.73ms` from Tokyo, JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f2 -m7 203.231.13.135

traceroute to 203.231.13.135 (203.231.13.135): 7 hops max, 52 byte packets

2 [AS3356] 212.162.29.73 2.644 ms

3 *

4 [AS3356] 217.163.103.22 28.367 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Zagreb, HR

On November 14th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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